Method and device for ultra-wideband communication

Abstract

Methods and devices are provided for ultra-wideband (UWB) communication. A first UWB device generates a discovery message providing information used for discovery of the first UWB device. The first UWB device broadcasts the discovery message through a narrowband (NB) discovery channel. The NB discovery channel is not associated with a UWB channel. The UWB channel is one of a plurality of candidate UWB channels allocated for the UWB communication.

What is claimed is: 
     
       1. A method for ultra-wideband (UWB) communication, the method comprising:
 transmitting, by a first UWB device, an advertisement message through a narrowband (NB) channel; 
 receiving, by the first UWB device, a first message for connection setup through the NB channel, from a second UWB device; and 
 transmitting, by the first UWB device, a second message responding to the first message through the NB channel, to the second UWB device, 
 wherein the second message includes information for communication on a UWB channel, and 
 wherein the UWB channel is one of a plurality of candidate UWB channels for the UWB communication. 
 
     
     
       2. The method of  claim 1 , wherein the NB channel is a public channel or a private channel set through negotiation with the second UWB device. 
     
     
       3. The method of  claim 1 , wherein:
 the advertisement message is periodically broadcast by the first UWB device, and 
 wherein information about a transmission period of the advertisement message is included in the advertisement message. 
 
     
     
       4. The method of  claim 1 ,
 wherein a bandwidth of the NB channel is different from a bandwidth of the UWB channel. 
 
     
     
       5. The method of  claim 1 ,
 wherein the information for communication on the UWB channel comprises information about the UWB channel. 
 
     
     
       6. A method for ultra-wideband (UWB) communication, the method comprising:
 receiving, from a first UWB device, an advertisement message, at a second UWB device, through a narrowband (NB) channel; 
 transmitting, by the second UWB device, a first message for connection setup through the NB channel, to the first UWB device; and 
 receiving, from the first UWB device, a second message responding to the first message, at the second UWB device, through the NB channel, 
 wherein the second message includes information for communication on a UWB channel, and 
 wherein the UWB channel is one of a plurality of candidate UWB channels for the UWB communication. 
 
     
     
       7. The method of  claim 6 , wherein the NB channel is a public channel or a private channel set through negotiation with the second UWB device. 
     
     
       8. The method of  claim 6 , wherein:
 the advertisement message is periodically broadcast by the first UWB device, and 
 wherein information about a transmission period of the advertisement message is included in the advertisement message. 
 
     
     
       9. The method of  claim 6 ,
 wherein a bandwidth of the NB channel is different from a bandwidth of the UWB channel. 
 
     
     
       10. The method of  claim 6 ,
 wherein the information for communication on the UWB channel comprises information about the UWB channel. 
 
     
     
       11. A first ultra-wideband (UWB) device, comprising:
 at least one transceiver; and 
 a controller connected to the at least one transceiver, wherein the controller is configured to:
 transmit an advertisement message through a narrowband (NB) channel, 
 receive a first message for connection setup through the NB channel, from a second UWB device, and 
 transmit a second message responding to the first message through the NB channel, to the second UWB device, 
 
 wherein the second message includes information for communication on a UWB channel, and 
 wherein the UWB channel is one of a plurality of candidate UWB channels for UWB communication. 
 
     
     
       12. The first UWB device of  claim 11 ,
 wherein a bandwidth of the NB channel is different from a bandwidth of the UWB channel. 
 
     
     
       13. The first UWB device of  claim 11 ,
 wherein the information for communication on the UWB channel comprises information about the UWB channel. 
 
     
     
       14. A second ultra-wideband (UWB) device comprising:
 at least one transceiver; and 
 a controller connected to the at least one transceiver, wherein the controller is configured to:
 receive, from a first UWB device, an advertisement message through a narrow band (NB) channel, 
 transmit a first message for connection setup through the NB channel, to the first UWB device, and 
 receive, from the first UWB device, a second message responding to the first message through the NB channel, 
 
 wherein the second message includes information for communication on a UWB channel, and 
 wherein the UWB channel is one of a plurality of candidate UWB channels for UWB communication. 
 
     
     
       15. The second UWB device of  claim 14 ,
 wherein a bandwidth of the NB channel is different from a bandwidth of the UWB channel. 
 
     
     
       16. The second UWB device of  claim 14 ,
 wherein the information for communication on the UWB channel comprises information about the UWB channel.